I've seen one on a really high-end racer (Transpac 65)--the prop and shaft pivot up into the boat and a door fairs the hull. Looks like a lot of expense and maintenance, but if you have an all carbon boat and an all Kiwi crew....

Mcconaghy makes an all composite one, performance under power is increased due to better fixed prop spec, improved under sail due to no drag, and to my mind maintenance is greatly reduced due to no fouling and no potential for electrolysis.

Just for a bit of historical perspective this concept has been around since the 20's. There were small power boats built in Port Carling Ont. nicknamed the "Dippy" or "Dispro" for disappearing propeller boat.

Currently Columbia Yachts is building their all carbon 32 footed with a retractable drive shaft and prop. It features the ability to raise and lower it by a simple block and tackle arrangement.
This system has been working remarkably well according to the new owners of this design. Simple to use, no vibration and fairly fail-safe.
I have personally operated one and it is pretty cool......at least on a 32 foot race boat
Simply check out their web site for more information.
ciao

Just for a bit of historical perspective this concept has been around since the 20's. There were small power boats built in Port Carling Ont. nicknamed the "Dippy" or "Dispro" for disappearing propeller boat.

Earlier even, there was a Confederate privateer vessel during the US Civil war which had a lifting prop.

Currently Columbia Yachts is building their all carbon 32 footed with a retractable drive shaft and prop. It features the ability to raise and lower it by a simple block and tackle arrangement.
This system has been working remarkably well according to the new owners of this design. Simple to use, no vibration and fairly fail-safe.
I have personally operated one and it is pretty cool......at least on a 32 foot race boat
Simply check out their web site for more information.
ciao

One of the new Columbia 32's went on the rocks a few hours after they lost their rudder. I gotta believe they must have tried to motor to weather and the arrangement wasn't up to it in 25 knots--one life lost.